US20130045638A1 - Cable connector, receptacle connector and connector assembly thereof with improved contact arrangement - Google Patents
Cable connector, receptacle connector and connector assembly thereof with improved contact arrangement Download PDFInfo
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- US20130045638A1 US20130045638A1 US13/550,945 US201213550945A US2013045638A1 US 20130045638 A1 US20130045638 A1 US 20130045638A1 US 201213550945 A US201213550945 A US 201213550945A US 2013045638 A1 US2013045638 A1 US 2013045638A1
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- Prior art keywords
- contacts
- pads
- connector
- tongue
- receptacle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
- H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/62—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
Definitions
- the present disclosure relates to a cable connector, a receptacle connector and a connector assembly thereof, and more particularly to a high-speed cable connector, a high-speed receptacle connector and a connector assembly thereof with improved paddle PCB as a tongue plate for impedance matching and cross-talk reduction.
- USB Universal Serial Bus
- the flat connector port includes a board connector for mounting on a mother board and a cable connector for mating with the board connector.
- the cable connector includes multiple contacts and cables for electrically connecting the contacts.
- an improved cable connector, an improved receptacle connector and a connector assembly thereof with robust high-frequency performance for high speed signal transmission are desired.
- the present disclosure relates to a connector assembly including a cable connector and a receptacle connector for mating with each other.
- the receptacle connector includes a receptacle housing and a plurality of contacts received in the receptacle housing.
- the receptacle housing defines a mating face and a receiving slot recessed from the mating face.
- Each contact includes an elastic contacting portion sidewardly extending into the receiving slot.
- the contacts include a plurality of first contacts and a plurality of second contacts which are compatible to USB 3.0 protocol.
- the second contacts include a plurality of differential signal contacts and ground contacts among which the differential signal contacts are paired and the ground contacts are located at opposite lateral sides of each paired differential signal contacts.
- the first contacts are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV.
- the cable connector includes a plug housing defining a mating surface and a paddle PCB fixed on the plug housing.
- the paddle PCB includes a cantilevered tongue plate extending forwardly beyond the mating surface.
- the tongue plate is provided with a plurality of conductive pads formed on at least one side surface thereof.
- the tongue plate includes a first tongue and a second tongue adjacent to the first tongue.
- the conductive pads include a plurality of first pads formed on the first tongue and a plurality of second pads formed on the second tongue.
- the second pads are compatible to USB 3.0 protocol and include a plurality of differential signal pads and ground pads among which the differential signal pads are paired and the ground pads are located at opposite lateral sides of each paired differential signal pads.
- the first pads are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV.
- the tongue plate of the cable connector is received in the receiving slot of the receptacle connector, and the elastic contacting portions of the first and the second contacts engage with corresponding first and second pads for signal transmission. Since the tongue plate is formed by a PCB, it is easy to control the impedance of the whole transmission system via the cable connector so as to decrease signal attenuation and signal reflection.
- FIG. 1 is a perspective view of a cable connector in accordance with an illustrated embodiment
- FIG. 2 is another perspective view of the cable connector as shown in FIG. 1 , taken from a different aspect;
- FIG. 3 is a side view of the cable connector as shown in FIG. 1 ;
- FIG. 4 is a top view of the cable connector as shown in FIG. 1 ;
- FIG. 5 is an exploded view of the cable connector
- FIG. 6 is another exploded view of the cable connector as shown in FIG. 5 ;
- FIG. 7 is a partly perspective view of the cable connector showing cables connecting with a paddle PCB
- FIG. 8 is a partly exploded view of the cable connector showing cables separate from the paddle PCB;
- FIG. 9 is a top view of the paddle PCB as shown in FIG. 8 , according to a first embodiment
- FIG. 10 is another top view of the paddle PCB as shown in FIG. 8 , according to a second embodiment
- FIG. 11 is another top view of the paddle PCB as shown in FIG. 8 , according to a third embodiment
- FIG. 12 is another top view of the paddle PCB as shown in FIG. 8 , according to a fourth embodiment
- FIG. 13 is another top view of the paddle PCB as shown in FIG. 8 , according to a fifth embodiment
- FIG. 14 is another top view of the paddle PCB as shown in FIG. 8 , according to a sixth embodiment
- FIG. 15 is another top view of the paddle PCB as shown in FIG. 8 , according to a seventh embodiment
- FIG. 16 is another top view of the paddle PCB as shown in FIG. 8 , according to an eighth embodiment
- FIG. 17 is a perspective view of a receptacle connector in accordance with an illustrated embodiment
- FIG. 18 is an exploded view of the receptacle connector as shown in FIG. 17 ;
- FIG. 19 is another exploded view of the receptacle connector as shown in FIG. 17 ;
- FIG. 20 is a perspective view of a connector assembly showing the cable connector separate from the receptacle connector
- FIG. 21 is another perspective view of the connector assembly as shown in FIG. 20 ;
- FIG. 22 is a perspective view of the connector assembly with the cable connector inserted in the receptacle connector
- FIG. 23 is a cross-sectional view of the connector assembly taken along line A-A in FIG. 22 ;
- FIG. 24 is a perspective view of a cable connector in accordance with another illustrated embodiment.
- FIG. 25 is a side view of the cable connector as shown in FIG. 24 ;
- FIG. 26 is a top view of the cable connector as shown in FIG. 24 ;
- FIG. 27 is a perspective view of a receptacle connector in accordance with another illustrated embodiment.
- FIG. 28 is a perspective view of a connector assembly showing the cable connector separate from the receptacle connector in accordance with another embodiment
- FIG. 29 is a perspective view of the connector assembly as shown in FIG. 28 with the cable connector inserted in the receptacle connector;
- FIG. 30 is a cross-sectional view of the connector assembly taken along line A′-A′ in FIG. 29 ;
- FIG. 31 is a perspective view of a connector assembly showing a cable connector separate from a receptacle connector in accordance with another embodiment
- FIG. 32 is a perspective view of the connector assembly as shown in FIG. 31 while taken from a different aspect
- FIG. 33 is another perspective view of the cable connector.
- FIG. 34 is a perspective view of the connector assembly as shown in FIG. 31 with the cable connector inserted in the receptacle connector.
- FIGS. 20 to 22 illustrate a connector assembly 300 including a receptacle connector 200 for mounting to a circuit board 400 and a cable connector 100 for mating with the receptacle connector 200 .
- both the cable connector 100 and the receptacle connector 200 are compatible to USB 3.0 protocol.
- the cable connector 100 includes an insulative plug housing 1 , a paddle printed circuit board (PCB) 2 retained in the plug housing 1 and a pair of cable assemblies 3 each including a plurality of cables (not labeled) for electrically connecting with the paddle PCB 2 .
- PCB printed circuit board
- the plug housing 1 includes a mating surface 101 and a mounting surface 102 opposite to the mating surface 101 .
- the plug housing 1 includes a first exterior wall 11 , a second exterior wall 12 opposite to the first exterior wall 11 and a locking mechanism 13 on the first exterior wall 11 .
- the first and the second exterior walls 11 , 12 are top and bottom walls of the plug housing 1 , respectively.
- the second exterior wall 12 includes a flat position block 121 cantileveredly extending forwardly beyond the mating surface 101 .
- the position block 121 is rectangular and helps guiding insertion of and supporting the cable connector 100 so as to avoid the cable connector 100 offsetting from the receptacle connector 200 during insertion.
- the locking mechanism 13 includes a cantilevered locking arm 131 and a pressing portion 132 connecting and protruding upwardly from the locking arm 131 .
- the locking arm 13 can be swingable with respect to the first exterior wall 11 via downwardly pressing the pressing portion 132 .
- the locking arm 131 includes a hook 133 towards the paddle PCB 2 .
- the hook 133 includes a slant surface 1331 and a vertical surface 1332 behind the slant surface 1331 .
- the plug housing 1 is over-molded to enclose the paddle PCB 2 and the cable assemblies 3 so as to prevent the paddle PCB 2 from disconnecting with the cable assemblies 3 .
- a first gap 14 is formed between the locking arm 131 and the first exterior wall 11 .
- a second gap 15 is formed between the pressing portion 132 and the first exterior wall 11 and the second gap 15 is greater than the first gap 14 for reasonable deformation of the pressing portion 132 .
- the locking mechanism 13 includes a fixed portion 134 between the hook 133 and the pressing portion 132 along a front-to-back direction.
- the fixed portion 134 is fastened to the first exterior wall 11 so that the locking arm 131 is swingable around the fixed portion 134 with respect to the first exterior wall 11 .
- the fixed portion 134 is integrally formed with the first exterior wall 11 for cost saving.
- the pressing portion 132 defines a plurality of grooves 1321 in order to improve friction with fingers.
- the locking arm 131 includes a first arm 1311 , a second arm 1312 and a slot 1313 separating the first and the second arms 1311 , 1312 .
- the hook 133 includes a first hook 1333 formed on a distal end of the first arm 1311 and a second hook 1334 formed on a distal end of the second arm 1312 .
- the separate first and the second arms 1311 , 1312 can help to improve elasticity of each arm 1311 , 1312 so as to easily assemble the first and the second arms 1311 , 1312 to the receptacle connector 200 , or remove the first and the second arms 1311 , 1312 from the receptacle connector 200 .
- the paddle PCB 2 includes a cantilevered tongue plate 21 forwardly extending beyond the mating surface 101 , a plurality of conductive pads 22 formed on both opposite sides of the tongue plate 21 , and a cable-mounting portion 23 opposite to the tongue plate 21 .
- the tongue plate 21 is located between the locking arm 131 and the position block 121 .
- Conductive pads 22 are also known as golden fingers to those of ordinary skill in the art.
- the tongue plate 21 includes a first tongue 211 , a second tongue 212 and a cutout 213 separating the first and the second tongues 211 , 212 .
- the cutout 213 extends through a front end of the tongue plate 21 .
- the first and the second tongues 211 , 212 have different widths so that the paddle PCB 2 can be prevented from mistakenly inserting into the receptacle connector 200 .
- the second tongue 212 is wider than the first tongue 211 . Since the tongue plate 21 is formed by a PCB (Printed Circuit Board), it is easy to control impedance of the cable connector 100 and decrease signal attenuation and signal reflection.
- PCB printed Circuit Board
- the conductive pads 22 include a plurality of first pads 221 set on the first tongue 211 and a plurality of second pads 222 set one the second tongue 222 .
- both upper and lower surfaces of the first tongue 211 are formed with the first pads 221
- both upper and lower surfaces of the second tongue 222 are formed with the second pads 222 . Since the conductive pads 22 formed on the upper and the lower surfaces of the tongue plate 21 are of the same arrangement, only the conductive pads 22 of the same side of the tongue plate 21 are described for simplicity.
- the second pads 222 are arranged as GSSGSSGSSG in turn from left to right, among which “G” represents grounding and “S” represents signal.
- the two “SS” located between adjacent “G” represents a differential signal pair including a positive signal and a negative signal. That is to say, the second pads 222 include a plurality of differential signal pads and ground pads among which the differential signal pads are paired and the ground pads are located at opposite lateral sides of each paired differential signal pads.
- the second pads 222 are compatible to USB 3.0 protocol for high speed signal transmission.
- the second pads 222 representing “G” are adapted for decreasing cross-talk between paired differential signal pads. Referring to FIGS.
- the first pads 221 are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV, among which “G” represents grounding, “S” represents signal and “V” represents power.
- the cable-mounting portion 23 includes a plurality of soldering pads 231 set on upper and lower surfaces thereof.
- the soldering pads 231 are adapted for electrically connecting with the first and the second pads 221 , 222 .
- Each cable includes a conductive layer 31 for engaging with the conductive pads 22 .
- the conductive layers 31 are soldered with the soldering pads 231 so as to establish connection between the cables and the conductive pads 22 .
- the cables can be formed by flat cables for easily achieving impedance matching and controlling high-frequency performance. According to the illustrated embodiment, two groups of cable assemblies 3 are disclosed so that a single port can transmit two groups of USB 3.0 signals, simultaneously.
- the definition of each cable assembly 3 is the same as the arrangement of the first pads 221 and the second pads 222 so that detailed description thereof is omitted herein.
- the receptacle connector 200 includes an insulative receptacle housing 5 and a plurality of contacts 6 received in the receptacle housing 5 .
- the receptacle housing 5 includes a mating face 501 , a mounting face 502 opposite to the mating face 501 , a plurality of passageways 51 extending through the mating face 501 and the mounting face 502 , and a receiving slot 52 recessed inwardly from the mating face 501 .
- the receptacle housing 5 further includes a rib 53 located in the receiving slot 52 to divide the receiving slot 52 into a first slot 521 and a second slot 522 .
- the first and the second slots 521 , 522 have different widths so that the cable connector 100 can be prevented from being reversely/incorrectly inserted into the receptacle connector 200 .
- the rib 53 is formed inside the mating face 501 in order to decrease the length of the cutout along the front-to-back direction.
- the receptacle housing 5 includes a top wall 54 , a bottom wall 55 and a pair of sidewardly extending blocks 56 .
- the receiving slot 52 is located between the top wall 54 and the bottom wall 55 .
- the top wall 54 includes a recess 541 extending through the mating face 501 and a protrusion 542 at the rear of the recess 541 .
- the protrusion 542 includes a slant guiding surface 5421 exposed to the recess 541 for guiding insertion of the locking arm 131 and a rear vertical surface 5422 for engaging with the hook 133 .
- the bottom wall 55 further includes a rectangular position slot 551 extending through the mating face 501 for receiving the position block 121 of the cable connector 100 .
- each contact 6 includes an elastic contacting portion 61 sidewardly extending into the receiving slot 52 and a mounting portion 62 extending beyond the receptacle housing 5 .
- the contacts 6 include a plurality of first contacts 63 extending into the first slot 521 and a plurality of second contacts 64 extending into the second slot 522 . According to the illustrated embodiment, both sides of the first slot 521 are set with the first contacts 63 and both sides of the second slot 522 are set with the second contacts 64 .
- the second contacts 64 are arranged as GSSGSSGSSG in turn from left to right, among which “G” represents grounding and “S” represents signal.
- the two “SS” located between adjacent “G” represents a differential signal pair including a positive signal and a negative signal. That is to say, the second contacts 64 includes a plurality of differential signal contacts and ground contacts among which the differential signal contacts are paired and the ground contacts are located at opposite lateral sides of each paired differential signal contacts.
- the second contacts 64 are compatible to USB 3.0 protocol for high speed signal transmission.
- the second contacts 64 representing “G” are adapted for decreasing cross-talk between paired differential signal contacts.
- the first contacts 63 are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV, among which “G” represents grounding, “S” represents signal and “V” represents power.
- the receptacle housing 5 includes a pair of mounting posts 57 protruding from the mounting face 502 for being inserted into mounting holes 401 of the circuit board 400 .
- Each mounting portion 62 extends beyond the mounting face 502 for being soldered to the circuit board 400 .
- the mounting portions 62 of the contacts 6 are soldered to the circuit board 400 via Surface Mounted Technology (SMT).
- SMT Surface Mounted Technology
- the mounting portions 62 of the contacts 6 can be soldered to the circuit board 400 via Through Hole (TH) technology.
- the receptacle connector 200 includes a pair of claws 7 fixed to the extending blocks 56 . The claws 7 extend beyond the mounting face 502 of the receptacle housing 5 for being mounted to the circuit board 400 .
- the first tongue 211 is received into the first slot 521
- the second tongue is received into the second slot 522
- the rib 53 is received in the cutout 213 .
- the position block 121 is guided to be received in the rectangular position slot 551 for supporting.
- the first and the second arms 1311 , 1312 are guided by the recess 541 .
- the slant surfaces 1331 of the first and the second hooks 1333 , 1334 engages with the slant guiding surface 5421 so that the first and the second arms 1311 , 1312 pivot upwardly.
- first and the second hooks 1333 , 1334 get over the slant guiding surface 5421 and the first and the second arms 1311 , 1312 release their elasticity to make the first and the second hooks 1333 , 1334 lock with the rear vertical surface 5422 .
- the cable connector 100 and the receptacle connector 200 are stably locked with each other with the contacts 6 mating with the conductive pads 22 for signal transmission.
- FIGS. 24 to 30 further disclose another connector assembly 300 ′ in accordance with another illustrated embodiment.
- the connector assembly 300 ′ is compatible to USB 3.0 protocol and includes a receptacle connector 200 ′ for mounting to a circuit board and a cable connector 100 ′ for mating with the receptacle connector 200 ′. It is mentioned that the same numeral of the connector assemblies 300 , 300 ′ in the two embodiments refer to the same component.
- the receptacle connector 200 ′ and the cable connector 100 ′ are similar to the receptacle connector 200 and the cable connector 100 , respectively, except the latch structures.
- the cable connector 100 ′ is compatible to USB 3.0 protocol and includes an insulative plug housing 1 ′, a paddle PCB 2 ′ retained in the plug housing 1 ′ and a plurality of cables 3 ′ for electrically connecting with the paddle PCB 2 ′.
- the plug housing 1 ′ is made of plastic and includes a mating surface 101 ′ and a mounting surface 102 ′ opposite to the mating surface 101 ′. From a structure view, the plug housing 1 ′ includes a first exterior wall 11 ′, a second exterior wall 12 ′ opposite to the first exterior wall 11 ′ and a locking mechanism 13 ′ on the first exterior wall 11 ′. According to the illustrated embodiment, the first and the second exterior walls 11 ′, 12 ′ are top and bottom walls of the plug housing 1 ′, respectively.
- the locking mechanism 13 ′ includes a pair of supporting portions 135 ′ fixed on the first exterior wall 11 ′, a pressing portion 132 ′ connecting the supporting portions 135 ′ and extending backwardly, and a cantilevered locking arm 131 ′ connecting the pressing portion 132 ′.
- Each supporting portion 135 ′ extends along a vertical direction and the pressing portion 132 ′ extends along a horizontal direction perpendicular to the vertical direction.
- the locking arm 13 ′ can be driven to pivot with respect to the first exterior wall 11 ′ around the supporting portions 135 ′ via downwardly pressing the pressing portion 132 ′.
- the locking arm 131 ′ extends forwardly beyond the mating surface 101 ′ and includes a hook 133 ′ towards the paddle PCB 2 ′.
- the hook 133 ′ includes a slant surface 1331 ′ and a vertical surface 1332 ′ behind the slant surface 1331 ′.
- the supporting portions 135 ′ extending a determined height along the vertical direction, a reasonable space is provided for deformation of the locking arm 131 ′ and the pressing portion 132 ′.
- double fulcrums can be realized so as to reinforce the locking arm 131 ′ and increase the service life of the locking arm 131 ′.
- the locking arm 131 ′ is situated between and protected by the pair of supporting portions 135 ′.
- the supporting portions 135 ′ are integrally formed on the first exterior wall 11 ′ for saving assembling costs.
- the supporting portions 135 ′ can be assembled to fix on the first exterior wall 11 ′, such as by a torsion spring (not shown). Anyhow, it is to be provided that the locking arm 131 ′ is capable of pivoting around the supporting portions 135 ′ which act as fulcrums.
- the receptacle connector 200 ′ is compatible to USB 3.0 protocol and includes an insulative receptacle housing 5 ′ and a plurality of contacts 6 ′ received in the receptacle housing 5 ′.
- the receptacle housing 5 ′ includes a mating face 501 ′, a mounting face 502 ′ opposite to the mating face 501 ′, a receiving slot 52 ′ recessed inwardly from the mating face 501 ′, and a rib 53 ′ inside the receiving slot 52 ′ to divide the receiving slot 52 ′ into a first slot 521 ′ and a second slot 522 ′.
- the first and the second slots 521 ′, 522 ′ have different widths so that the cable connector 100 ′ can be prevented from being reversely/incorrectly inserted into the receptacle connector 200 ′.
- the receptacle housing 5 ′ includes a top wall 54 ′, a bottom wall 55 ′ and a pair of sidewardly extending blocks 56 ′.
- the receiving slot 52 ′ is located between the top wall 54 ′ and the bottom wall 55 ′.
- the top wall 54 ′ includes a recess 541 ′ extending through the mating face 501 ′ and a protrusion 542 ′ at the rear of the recess 541 ′.
- the protrusion 542 ′ includes a slant guiding surface 5421 ′ exposed to the recess 541 ′ for guiding insertion of the locking arm 131 ′ and a rear vertical surface 5422 ′ for engaging with the hook 133 ′.
- the protrusion 542 ′ is higher than the top wall 54 ′ so as to form the rear vertical surface 5422 ′ with a relative large area, which improves locking stability of the locking arm 131 ′ and the rear vertical surface 5422 ′.
- the locking arm 131 ′ is corresponding to the recess 541 ′ and the slant surface 1331 ′ of the hook 133 ′ is guided by the slant guiding surface 5421 ′ to climb.
- the locking arm 131 ′ is driven to pivot upwardly to let the locking arm 131 ′ ultimately get over the slant guiding surface 5421 ′.
- the locking arm 131 ′ releases at least part of its elasticity to make the vertical surface 1332 ′ of the hook 133 ′ lock with the rear vertical surface 5422 ′. Under this condition, the cable connector 100 ′ and the receptacle connector 200 ′ are stably locked with each other.
- the pressing portion 132 ′ may be downwardly pressed so as to uplift the locking arm 131 ′.
- the vertical surface 1332 ′ of the hook 133 ′ disengages with the rear vertical surface 5422 ′ along the vertical direction and the plug connector 100 ′ can be separated from the receptacle connector 200 ′ when a pulling force along the front-to-back direction is applied.
- FIGS. 31 to 34 further disclose another connector assembly 300 ′′ in accordance with another illustrated embodiment.
- the connector assembly 300 ′′ is also compatible to USB 3.0 protocol and includes a receptacle connector 200 ′′ for mounting to a circuit board 400 ′′ and a cable connector 100 ′′ for mating with the receptacle connector 200 ′′. It is mentioned that the same numeral of the connector assemblies 300 , 300 ′′ in the two embodiments refer to the same component. Since the receptacle connector 200 ′′ and the cable connector 100 ′′ are similar to the receptacle connector 200 and the cable connector 100 , respectively, same configurations thereof are omitted in description hereinafter.
- the cable connector 100 ′′ is also compatible to USB 3.0 protocol and includes an insulative plug housing 1 ′′, a paddle PCB 2 ′′ retained in the plug housing 1 ′′ and a plurality of cables 3 ′′ for electrically connecting with the paddle PCB 2 ′′.
- the paddle PCB 2 ′′ includes a tongue plate 21 ′′ which defines a cutout 213 ′′ separating the tongue plate 21 ′′ into a first tongue 211 ′′ and a second tongue 212 ′′ of different widths.
- the insulative plug housing 1 ′′ includes a locking mechanism 13 ′′ formed on a first exterior wall 11 ′′ for locking with receptacle connector 200 ′′.
- the locking mechanism 13 ′′ includes a cantilevered locking arm 131 ′′ with a hook 133 ′′ towards the paddle PCB 2 ′′, a pressing portion 132 ′′ for receiving external pressing force and a fixed portion 134 ′′ between the hook 133 ′′ and the pressing portion 132 ′′ along a front-to-back direction.
- the fixed portion 134 ′′ is fastened to the first exterior wall 11 ′′.
- the locking arm 131 ′′ is swingable around the fixed portion 134 ′′ with respect to the first exterior wall 11 ′′.
- the differences between the cable connector 100 ′′ and the cable connector 100 include different positions of the cutouts 213 , 213 ′′ and different configurations of the locking mechanisms 13 , 13 ′′.
- the second tongue 212 is wider than the first tongue 211 in the first embodiment while the second tongue 212 ′′ is narrower than the first tongue 211 ′′ in the third embodiment.
- the first tongue 211 ′′ is the same as the second tongue 212 and the second tongue 212 ′′ is the same as the first tongue 211 .
- the locking arm 131 ′′ is unitary without the slot 1313 as shown in FIG. 1 .
- the locking arm 131 ′′ includes a contractive waist 136 ′′ between the hook 133 ′′ and the pressing portion 133 ′′ along the front-to-back direction. Furthermore, as shown in FIG. 33 , in order to better support the locking mechanisms 13 , a reinforce block 137 ′′ is formed integrally with the fixed portion 134 ′′. The reinforce block 137 ′′ protrudes backwardly beyond the fixed portion 134 ′′ along the front-to-back direction.
- the receptacle connector 200 ′′ is compatible to USB 3.0 protocol and includes an insulative receptacle housing 5 ′′ and a plurality of contacts 6 ′′ received in the receptacle housing 5 ′′.
- the receptacle housing 5 ′′ includes a mating face 501 ′′, a mounting face 502 ′′ opposite to the mating face 501 ′′, a receiving slot 52 ′′ recessed inwardly from the mating face 501 ′′, and a rib 53 ′′ dividing the receiving slot 52 ′′ into a first slot 521 ′′ and a second slot 522 ′′.
- the first and the second slots 521 ′′, 522 ′′ have different widths so that the cable connector 100 ′′ can be prevented from being reversely/incorrectly inserted into the receptacle connector 200 ′′.
- Each contact 6 ′′ includes an elastic contacting portion 61 ′′ protruding into the receiving slot 52 ′′ and a mounting portion 62 ′′ extending beyond the mounting face 502 ′′ of the receptacle housing 5 ′′.
- the differences between the receptacle connector 200 ′′ and the receptacle connector 200 include different positions of the ribs 53 , 53 ′′ and different mounting styles of the mounting portions 62 , 62 ′′ etc.
- the second slot 522 is wider than the first slot 521 in the first embodiment while the second slot 522 ′′ is narrower than the first slot 521 ′′ in the third embodiment.
- the first slot 521 ′′ is the same as the second slot 522 and the second slot 522 ′′ is the same as the first slot 521 .
- the mounting portions 62 ′′ are inserted through mounting holes 401 ′′ of the circuit board 400 ′′ for soldering via Through Hole (TH) technology.
- each corner of the receptacle housing 5 ′′ defines an escaping hole 508 ′′ not only for material saving but also for stress releasing.
- the cable connector 100 ′′ can be inserted into the receptacle connector 200 ′′ for locking, and the cable connector 100 ′′ can be separated from the receptacle connector 200 ′′ for disengaging. Repeated description is omitted herein.
Abstract
Description
- 1. Technical Field
- The present disclosure relates to a cable connector, a receptacle connector and a connector assembly thereof, and more particularly to a high-speed cable connector, a high-speed receptacle connector and a connector assembly thereof with improved paddle PCB as a tongue plate for impedance matching and cross-talk reduction.
- 2. Description of the Related Art
- Universal Serial Bus (USB) has been widely used in electronic products due to its stable transmission speed and high performance. With the development of the USB port protocol, it will surely transit to USB 3.0 version after USB 1.0 version and USB 2.0 version. Comparing with the USB 2.0 port, the USB 3.0 port is provided with transmission speed ten times faster. Presently, it is a flat connector port developed by Intel which can support the USB 3.0 protocol. The flat connector port includes a board connector for mounting on a mother board and a cable connector for mating with the board connector. The cable connector includes multiple contacts and cables for electrically connecting the contacts. However, it is difficult for impedance matching among the board connector, the mother board and the cables according to the conventional connector ports, as a result that the high-frequency performance of the conventional connector ports is poor and signal distortion may so much as occur in transmission.
- Hence, an improved cable connector, an improved receptacle connector and a connector assembly thereof with robust high-frequency performance for high speed signal transmission are desired.
- The present disclosure relates to a connector assembly including a cable connector and a receptacle connector for mating with each other. In an embodiment, the receptacle connector includes a receptacle housing and a plurality of contacts received in the receptacle housing. The receptacle housing defines a mating face and a receiving slot recessed from the mating face. Each contact includes an elastic contacting portion sidewardly extending into the receiving slot. The contacts include a plurality of first contacts and a plurality of second contacts which are compatible to USB 3.0 protocol. The second contacts include a plurality of differential signal contacts and ground contacts among which the differential signal contacts are paired and the ground contacts are located at opposite lateral sides of each paired differential signal contacts. The first contacts are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV.
- In an embodiment, the cable connector includes a plug housing defining a mating surface and a paddle PCB fixed on the plug housing. The paddle PCB includes a cantilevered tongue plate extending forwardly beyond the mating surface. The tongue plate is provided with a plurality of conductive pads formed on at least one side surface thereof. The tongue plate includes a first tongue and a second tongue adjacent to the first tongue. The conductive pads include a plurality of first pads formed on the first tongue and a plurality of second pads formed on the second tongue. The second pads are compatible to USB 3.0 protocol and include a plurality of differential signal pads and ground pads among which the differential signal pads are paired and the ground pads are located at opposite lateral sides of each paired differential signal pads. The first pads are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV.
- When the cable connector and the receptacle connector are mateable with each other, the tongue plate of the cable connector is received in the receiving slot of the receptacle connector, and the elastic contacting portions of the first and the second contacts engage with corresponding first and second pads for signal transmission. Since the tongue plate is formed by a PCB, it is easy to control the impedance of the whole transmission system via the cable connector so as to decrease signal attenuation and signal reflection.
- The foregoing has outlined rather broadly the features and technical advantages of at least one embodiment in order that the detailed description that follows may be better understood. Additional features and advantages of embodiments will be described hereinafter which form the subject of the claims.
- For a more complete understanding of the present disclosure, and the advantages of embodiments thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a perspective view of a cable connector in accordance with an illustrated embodiment; -
FIG. 2 is another perspective view of the cable connector as shown inFIG. 1 , taken from a different aspect; -
FIG. 3 is a side view of the cable connector as shown inFIG. 1 ; -
FIG. 4 is a top view of the cable connector as shown inFIG. 1 ; -
FIG. 5 is an exploded view of the cable connector; -
FIG. 6 is another exploded view of the cable connector as shown inFIG. 5 ; -
FIG. 7 is a partly perspective view of the cable connector showing cables connecting with a paddle PCB; -
FIG. 8 is a partly exploded view of the cable connector showing cables separate from the paddle PCB; -
FIG. 9 is a top view of the paddle PCB as shown inFIG. 8 , according to a first embodiment; -
FIG. 10 is another top view of the paddle PCB as shown inFIG. 8 , according to a second embodiment; -
FIG. 11 is another top view of the paddle PCB as shown inFIG. 8 , according to a third embodiment; -
FIG. 12 is another top view of the paddle PCB as shown inFIG. 8 , according to a fourth embodiment; -
FIG. 13 is another top view of the paddle PCB as shown inFIG. 8 , according to a fifth embodiment; -
FIG. 14 is another top view of the paddle PCB as shown inFIG. 8 , according to a sixth embodiment; -
FIG. 15 is another top view of the paddle PCB as shown inFIG. 8 , according to a seventh embodiment; -
FIG. 16 is another top view of the paddle PCB as shown inFIG. 8 , according to an eighth embodiment; -
FIG. 17 is a perspective view of a receptacle connector in accordance with an illustrated embodiment; -
FIG. 18 is an exploded view of the receptacle connector as shown inFIG. 17 ; -
FIG. 19 is another exploded view of the receptacle connector as shown inFIG. 17 ; -
FIG. 20 is a perspective view of a connector assembly showing the cable connector separate from the receptacle connector; -
FIG. 21 is another perspective view of the connector assembly as shown inFIG. 20 ; -
FIG. 22 is a perspective view of the connector assembly with the cable connector inserted in the receptacle connector; -
FIG. 23 is a cross-sectional view of the connector assembly taken along line A-A inFIG. 22 ; -
FIG. 24 is a perspective view of a cable connector in accordance with another illustrated embodiment; -
FIG. 25 is a side view of the cable connector as shown inFIG. 24 ; -
FIG. 26 is a top view of the cable connector as shown inFIG. 24 ; -
FIG. 27 is a perspective view of a receptacle connector in accordance with another illustrated embodiment; -
FIG. 28 is a perspective view of a connector assembly showing the cable connector separate from the receptacle connector in accordance with another embodiment; -
FIG. 29 is a perspective view of the connector assembly as shown inFIG. 28 with the cable connector inserted in the receptacle connector; -
FIG. 30 is a cross-sectional view of the connector assembly taken along line A′-A′ inFIG. 29 ; -
FIG. 31 is a perspective view of a connector assembly showing a cable connector separate from a receptacle connector in accordance with another embodiment; -
FIG. 32 is a perspective view of the connector assembly as shown inFIG. 31 while taken from a different aspect; -
FIG. 33 is another perspective view of the cable connector; and -
FIG. 34 is a perspective view of the connector assembly as shown inFIG. 31 with the cable connector inserted in the receptacle connector. - Reference will now be made to the drawing figures to describe some preferred embodiments in detail.
FIGS. 20 to 22 illustrate aconnector assembly 300 including areceptacle connector 200 for mounting to acircuit board 400 and acable connector 100 for mating with thereceptacle connector 200. According to the illustrated embodiments, both thecable connector 100 and thereceptacle connector 200 are compatible to USB 3.0 protocol. - Referring to
FIGS. 1 and 2 , thecable connector 100 includes aninsulative plug housing 1, a paddle printed circuit board (PCB) 2 retained in theplug housing 1 and a pair ofcable assemblies 3 each including a plurality of cables (not labeled) for electrically connecting with thepaddle PCB 2. - Referring to
FIGS. 3 to 6 , theplug housing 1 includes amating surface 101 and a mountingsurface 102 opposite to themating surface 101. From a structure view, theplug housing 1 includes a firstexterior wall 11, a secondexterior wall 12 opposite to the firstexterior wall 11 and alocking mechanism 13 on the firstexterior wall 11. According to the preferred embodiment, the first and the secondexterior walls plug housing 1, respectively. The secondexterior wall 12 includes a flat position block 121 cantileveredly extending forwardly beyond themating surface 101. Theposition block 121 is rectangular and helps guiding insertion of and supporting thecable connector 100 so as to avoid thecable connector 100 offsetting from thereceptacle connector 200 during insertion. Thelocking mechanism 13 includes a cantilevered lockingarm 131 and apressing portion 132 connecting and protruding upwardly from the lockingarm 131. The lockingarm 13 can be swingable with respect to the firstexterior wall 11 via downwardly pressing thepressing portion 132. The lockingarm 131 includes ahook 133 towards thepaddle PCB 2. Thehook 133 includes aslant surface 1331 and avertical surface 1332 behind theslant surface 1331. Theplug housing 1 is over-molded to enclose thepaddle PCB 2 and thecable assemblies 3 so as to prevent thepaddle PCB 2 from disconnecting with thecable assemblies 3. Afirst gap 14 is formed between the lockingarm 131 and the firstexterior wall 11. Asecond gap 15 is formed between thepressing portion 132 and the firstexterior wall 11 and thesecond gap 15 is greater than thefirst gap 14 for reasonable deformation of thepressing portion 132. - Referring to
FIG. 3 , thelocking mechanism 13 includes a fixedportion 134 between thehook 133 and thepressing portion 132 along a front-to-back direction. The fixedportion 134 is fastened to the firstexterior wall 11 so that thelocking arm 131 is swingable around the fixedportion 134 with respect to the firstexterior wall 11. According to the illustrated embodiment, the fixedportion 134 is integrally formed with the firstexterior wall 11 for cost saving. Thepressing portion 132 defines a plurality ofgrooves 1321 in order to improve friction with fingers. - Referring to
FIGS. 3 to 5 , the lockingarm 131 includes afirst arm 1311, asecond arm 1312 and aslot 1313 separating the first and thesecond arms hook 133 includes afirst hook 1333 formed on a distal end of thefirst arm 1311 and asecond hook 1334 formed on a distal end of thesecond arm 1312. The separate first and thesecond arms arm second arms receptacle connector 200, or remove the first and thesecond arms receptacle connector 200. - The
paddle PCB 2 includes a cantileveredtongue plate 21 forwardly extending beyond themating surface 101, a plurality ofconductive pads 22 formed on both opposite sides of thetongue plate 21, and a cable-mountingportion 23 opposite to thetongue plate 21. Thetongue plate 21 is located between the lockingarm 131 and theposition block 121.Conductive pads 22 are also known as golden fingers to those of ordinary skill in the art. Thetongue plate 21 includes afirst tongue 211, asecond tongue 212 and acutout 213 separating the first and thesecond tongues cutout 213 extends through a front end of thetongue plate 21. The first and thesecond tongues paddle PCB 2 can be prevented from mistakenly inserting into thereceptacle connector 200. According to the illustrated embodiment, thesecond tongue 212 is wider than thefirst tongue 211. Since thetongue plate 21 is formed by a PCB (Printed Circuit Board), it is easy to control impedance of thecable connector 100 and decrease signal attenuation and signal reflection. - Referring to
FIGS. 7 and 8 , theconductive pads 22 include a plurality offirst pads 221 set on thefirst tongue 211 and a plurality ofsecond pads 222 set one thesecond tongue 222. According to the illustrated embodiment, both upper and lower surfaces of thefirst tongue 211 are formed with thefirst pads 221, and both upper and lower surfaces of thesecond tongue 222 are formed with thesecond pads 222. Since theconductive pads 22 formed on the upper and the lower surfaces of thetongue plate 21 are of the same arrangement, only theconductive pads 22 of the same side of thetongue plate 21 are described for simplicity. Referring toFIG. 9 , thesecond pads 222 are arranged as GSSGSSGSSG in turn from left to right, among which “G” represents grounding and “S” represents signal. The two “SS” located between adjacent “G” represents a differential signal pair including a positive signal and a negative signal. That is to say, thesecond pads 222 include a plurality of differential signal pads and ground pads among which the differential signal pads are paired and the ground pads are located at opposite lateral sides of each paired differential signal pads. Thesecond pads 222 are compatible to USB 3.0 protocol for high speed signal transmission. Thesecond pads 222 representing “G” are adapted for decreasing cross-talk between paired differential signal pads. Referring toFIGS. 9 to 16 , thefirst pads 221 are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV, among which “G” represents grounding, “S” represents signal and “V” represents power. - The cable-mounting
portion 23 includes a plurality ofsoldering pads 231 set on upper and lower surfaces thereof. Thesoldering pads 231 are adapted for electrically connecting with the first and thesecond pads conductive layer 31 for engaging with theconductive pads 22. Referring toFIG. 7 , theconductive layers 31 are soldered with thesoldering pads 231 so as to establish connection between the cables and theconductive pads 22. The cables can be formed by flat cables for easily achieving impedance matching and controlling high-frequency performance. According to the illustrated embodiment, two groups ofcable assemblies 3 are disclosed so that a single port can transmit two groups of USB 3.0 signals, simultaneously. The definition of eachcable assembly 3 is the same as the arrangement of thefirst pads 221 and thesecond pads 222 so that detailed description thereof is omitted herein. - Referring to
FIG. 17 , thereceptacle connector 200 includes aninsulative receptacle housing 5 and a plurality ofcontacts 6 received in thereceptacle housing 5. Thereceptacle housing 5 includes amating face 501, a mountingface 502 opposite to themating face 501, a plurality ofpassageways 51 extending through themating face 501 and the mountingface 502, and a receivingslot 52 recessed inwardly from themating face 501. Thereceptacle housing 5 further includes arib 53 located in the receivingslot 52 to divide the receivingslot 52 into afirst slot 521 and asecond slot 522. The first and thesecond slots cable connector 100 can be prevented from being reversely/incorrectly inserted into thereceptacle connector 200. Therib 53 is formed inside themating face 501 in order to decrease the length of the cutout along the front-to-back direction. Referring toFIGS. 18 and 19 , thereceptacle housing 5 includes atop wall 54, abottom wall 55 and a pair of sidewardly extending blocks 56. The receivingslot 52 is located between thetop wall 54 and thebottom wall 55. Thetop wall 54 includes arecess 541 extending through themating face 501 and aprotrusion 542 at the rear of therecess 541. Theprotrusion 542 includes aslant guiding surface 5421 exposed to therecess 541 for guiding insertion of thelocking arm 131 and a rearvertical surface 5422 for engaging with thehook 133. Thebottom wall 55 further includes arectangular position slot 551 extending through themating face 501 for receiving the position block 121 of thecable connector 100. - The
contacts 6 are received in thepassageways 51 and eachcontact 6 includes an elastic contactingportion 61 sidewardly extending into the receivingslot 52 and a mountingportion 62 extending beyond thereceptacle housing 5. Thecontacts 6 include a plurality offirst contacts 63 extending into thefirst slot 521 and a plurality ofsecond contacts 64 extending into thesecond slot 522. According to the illustrated embodiment, both sides of thefirst slot 521 are set with thefirst contacts 63 and both sides of thesecond slot 522 are set with thesecond contacts 64. - Since the arrangement of the
contacts 6 of each side is the same, only thecontacts 6 located at the same side of the first and thesecond slots FIG. 19 , in accordance with the arrangement of thesecond pads 222, thesecond contacts 64 are arranged as GSSGSSGSSG in turn from left to right, among which “G” represents grounding and “S” represents signal. The two “SS” located between adjacent “G” represents a differential signal pair including a positive signal and a negative signal. That is to say, thesecond contacts 64 includes a plurality of differential signal contacts and ground contacts among which the differential signal contacts are paired and the ground contacts are located at opposite lateral sides of each paired differential signal contacts. Thesecond contacts 64 are compatible to USB 3.0 protocol for high speed signal transmission. Thesecond contacts 64 representing “G” are adapted for decreasing cross-talk between paired differential signal contacts. In accordance with the arrangement of thefirst pads 221, thefirst contacts 63 are ordinally arranged as GGVV, or VGVG, or VVGG, or GVGV, or GVVG, or VGGV, or VSSG, or GSSV, among which “G” represents grounding, “S” represents signal and “V” represents power. - Referring to
FIG. 19 , thereceptacle housing 5 includes a pair of mountingposts 57 protruding from the mountingface 502 for being inserted into mountingholes 401 of thecircuit board 400. Each mountingportion 62 extends beyond the mountingface 502 for being soldered to thecircuit board 400. According to the illustrated embodiment, the mountingportions 62 of thecontacts 6 are soldered to thecircuit board 400 via Surface Mounted Technology (SMT). However, in an alternative embodiment, e.g., similar toFIG. 31 , the mountingportions 62 of thecontacts 6 can be soldered to thecircuit board 400 via Through Hole (TH) technology. Thereceptacle connector 200 includes a pair of claws 7 fixed to the extending blocks 56. The claws 7 extend beyond the mountingface 502 of thereceptacle housing 5 for being mounted to thecircuit board 400. - Referring to
FIGS. 20 to 23 , when thecable connector 100 is inserted into thereceptacle connector 200, thefirst tongue 211 is received into thefirst slot 521, the second tongue is received into thesecond slot 522, and therib 53 is received in thecutout 213. Simultaneously, the position block 121 is guided to be received in therectangular position slot 551 for supporting. The first and thesecond arms recess 541. During such insertion, the slant surfaces 1331 of the first and thesecond hooks slant guiding surface 5421 so that the first and thesecond arms second hooks slant guiding surface 5421 and the first and thesecond arms second hooks vertical surface 5422. Under this condition, thecable connector 100 and thereceptacle connector 200 are stably locked with each other with thecontacts 6 mating with theconductive pads 22 for signal transmission. - When the
plug connector 100 is needed to be separated from thereceptacle connector 200, an external forced is applied to press downwardly thepressing portion 132 to drive the first and thesecond arms portion 134. Ultimately, thevertical surface 1332 of the first and thesecond hooks vertical surface 5422 along a vertical direction, so that theplug connector 100 can be separated from thereceptacle connector 200 if a pulling force along the front-to-back direction is applied. -
FIGS. 24 to 30 further disclose anotherconnector assembly 300′ in accordance with another illustrated embodiment. Theconnector assembly 300′ is compatible to USB 3.0 protocol and includes areceptacle connector 200′ for mounting to a circuit board and acable connector 100′ for mating with thereceptacle connector 200′. It is mentioned that the same numeral of theconnector assemblies receptacle connector 200′ and thecable connector 100′ are similar to thereceptacle connector 200 and thecable connector 100, respectively, except the latch structures. - Referring to
FIGS. 24 to 26 , thecable connector 100′ is compatible to USB 3.0 protocol and includes aninsulative plug housing 1′, apaddle PCB 2′ retained in theplug housing 1′ and a plurality ofcables 3′ for electrically connecting with thepaddle PCB 2′. - The
plug housing 1′ is made of plastic and includes amating surface 101′ and a mountingsurface 102′ opposite to themating surface 101′. From a structure view, theplug housing 1′ includes a firstexterior wall 11′, a secondexterior wall 12′ opposite to the firstexterior wall 11′ and alocking mechanism 13′ on the firstexterior wall 11′. According to the illustrated embodiment, the first and the secondexterior walls 11′, 12′ are top and bottom walls of theplug housing 1′, respectively. Thelocking mechanism 13′ includes a pair of supportingportions 135′ fixed on the firstexterior wall 11′, apressing portion 132′ connecting the supportingportions 135′ and extending backwardly, and acantilevered locking arm 131′ connecting thepressing portion 132′. Each supportingportion 135′ extends along a vertical direction and thepressing portion 132′ extends along a horizontal direction perpendicular to the vertical direction. The lockingarm 13′ can be driven to pivot with respect to the firstexterior wall 11′ around the supportingportions 135′ via downwardly pressing thepressing portion 132′. The lockingarm 131′ extends forwardly beyond themating surface 101′ and includes ahook 133′ towards thepaddle PCB 2′. Thehook 133′ includes aslant surface 1331′ and avertical surface 1332′ behind theslant surface 1331′. With the supportingportions 135′ extending a determined height along the vertical direction, a reasonable space is provided for deformation of thelocking arm 131′ and thepressing portion 132′. Besides, with the pair of supportingportions 135′, double fulcrums can be realized so as to reinforce thelocking arm 131′ and increase the service life of thelocking arm 131′. The lockingarm 131′ is situated between and protected by the pair of supportingportions 135′. According to the illustrated embodiment, the supportingportions 135′ are integrally formed on the firstexterior wall 11′ for saving assembling costs. However, in other embodiments, the supportingportions 135′ can be assembled to fix on the firstexterior wall 11′, such as by a torsion spring (not shown). Anyhow, it is to be provided that thelocking arm 131′ is capable of pivoting around the supportingportions 135′ which act as fulcrums. - Referring to
FIG. 27 , thereceptacle connector 200′ is compatible to USB 3.0 protocol and includes aninsulative receptacle housing 5′ and a plurality ofcontacts 6′ received in thereceptacle housing 5′. Thereceptacle housing 5′ includes amating face 501′, a mountingface 502′ opposite to themating face 501′, a receivingslot 52′ recessed inwardly from themating face 501′, and arib 53′ inside the receivingslot 52′ to divide the receivingslot 52′ into afirst slot 521′ and asecond slot 522′. The first and thesecond slots 521′, 522′ have different widths so that thecable connector 100′ can be prevented from being reversely/incorrectly inserted into thereceptacle connector 200′. Thereceptacle housing 5′ includes atop wall 54′, abottom wall 55′ and a pair of sidewardly extendingblocks 56′. The receivingslot 52′ is located between thetop wall 54′ and thebottom wall 55′. Thetop wall 54′ includes arecess 541′ extending through themating face 501′ and aprotrusion 542′ at the rear of therecess 541′. Theprotrusion 542′ includes aslant guiding surface 5421′ exposed to therecess 541′ for guiding insertion of thelocking arm 131′ and a rearvertical surface 5422′ for engaging with thehook 133′. According to the illustrated embodiment, theprotrusion 542′ is higher than thetop wall 54′ so as to form the rearvertical surface 5422′ with a relative large area, which improves locking stability of thelocking arm 131′ and the rearvertical surface 5422′. - Referring to
FIGS. 28 to 30 , when thecable connector 100′ is inserted into thereceptacle connector 200′, the lockingarm 131′ is corresponding to therecess 541′ and theslant surface 1331′ of thehook 133′ is guided by theslant guiding surface 5421′ to climb. The lockingarm 131′ is driven to pivot upwardly to let thelocking arm 131′ ultimately get over theslant guiding surface 5421′. Once the lockingarm 131′ got over theslant guiding surface 5421′, the lockingarm 131′ releases at least part of its elasticity to make thevertical surface 1332′ of thehook 133′ lock with the rearvertical surface 5422′. Under this condition, thecable connector 100′ and thereceptacle connector 200′ are stably locked with each other. - When the
plug connector 100′ is needed to be separated from thereceptacle connector 200′, thepressing portion 132′ may be downwardly pressed so as to uplift thelocking arm 131′. Ultimately, thevertical surface 1332′ of thehook 133′ disengages with the rearvertical surface 5422′ along the vertical direction and theplug connector 100′ can be separated from thereceptacle connector 200′ when a pulling force along the front-to-back direction is applied. -
FIGS. 31 to 34 further disclose anotherconnector assembly 300″ in accordance with another illustrated embodiment. Theconnector assembly 300″ is also compatible to USB 3.0 protocol and includes areceptacle connector 200″ for mounting to acircuit board 400″ and acable connector 100″ for mating with thereceptacle connector 200″. It is mentioned that the same numeral of theconnector assemblies receptacle connector 200″ and thecable connector 100″ are similar to thereceptacle connector 200 and thecable connector 100, respectively, same configurations thereof are omitted in description hereinafter. - The
cable connector 100″ is also compatible to USB 3.0 protocol and includes aninsulative plug housing 1″, apaddle PCB 2″ retained in theplug housing 1″ and a plurality ofcables 3″ for electrically connecting with thepaddle PCB 2″. Thepaddle PCB 2″ includes atongue plate 21″ which defines acutout 213″ separating thetongue plate 21″ into afirst tongue 211″ and asecond tongue 212″ of different widths. Besides, the insulative plughousing 1″ includes alocking mechanism 13″ formed on a firstexterior wall 11″ for locking withreceptacle connector 200″. Thelocking mechanism 13″ includes a cantilevered lockingarm 131″ with ahook 133″ towards thepaddle PCB 2″, apressing portion 132″ for receiving external pressing force and a fixedportion 134″ between thehook 133″ and thepressing portion 132″ along a front-to-back direction. The fixedportion 134″ is fastened to the firstexterior wall 11″. The lockingarm 131″ is swingable around the fixedportion 134″ with respect to the firstexterior wall 11″. - The differences between the
cable connector 100″ and thecable connector 100 include different positions of thecutouts mechanisms FIGS. 1 and 31 , thesecond tongue 212 is wider than thefirst tongue 211 in the first embodiment while thesecond tongue 212″ is narrower than thefirst tongue 211″ in the third embodiment. Understandably, thefirst tongue 211″ is the same as thesecond tongue 212 and thesecond tongue 212″ is the same as thefirst tongue 211. The lockingarm 131″ is unitary without theslot 1313 as shown inFIG. 1 . Besides, the lockingarm 131″ includes acontractive waist 136″ between thehook 133″ and thepressing portion 133″ along the front-to-back direction. Furthermore, as shown inFIG. 33 , in order to better support the lockingmechanisms 13, a reinforceblock 137″ is formed integrally with the fixedportion 134″. The reinforceblock 137″ protrudes backwardly beyond the fixedportion 134″ along the front-to-back direction. - Referring to
FIG. 32 , thereceptacle connector 200″ is compatible to USB 3.0 protocol and includes aninsulative receptacle housing 5″ and a plurality ofcontacts 6″ received in thereceptacle housing 5″. Thereceptacle housing 5″ includes amating face 501″, a mountingface 502″ opposite to themating face 501″, a receivingslot 52″ recessed inwardly from themating face 501″, and arib 53″ dividing the receivingslot 52″ into afirst slot 521″ and asecond slot 522″. The first and thesecond slots 521″, 522″ have different widths so that thecable connector 100″ can be prevented from being reversely/incorrectly inserted into thereceptacle connector 200″. Eachcontact 6″ includes an elastic contactingportion 61″ protruding into the receivingslot 52″ and a mountingportion 62″ extending beyond the mountingface 502″ of thereceptacle housing 5″. - The differences between the
receptacle connector 200″ and thereceptacle connector 200 include different positions of theribs portions FIGS. 20 and 32 , thesecond slot 522 is wider than thefirst slot 521 in the first embodiment while thesecond slot 522″ is narrower than thefirst slot 521″ in the third embodiment. Understandably, thefirst slot 521″ is the same as thesecond slot 522 and thesecond slot 522″ is the same as thefirst slot 521. Besides, the mountingportions 62″ are inserted through mountingholes 401″ of thecircuit board 400″ for soldering via Through Hole (TH) technology. Furthermore, each corner of thereceptacle housing 5″ defines an escapinghole 508″ not only for material saving but also for stress releasing. - Referring to
FIGS. 31 , 32 and 34, similar to the working principles of the foregoing embodiments as shown inFIGS. 20 to 23 , and 28 to 30, thecable connector 100″ can be inserted into thereceptacle connector 200″ for locking, and thecable connector 100″ can be separated from thereceptacle connector 200″ for disengaging. Repeated description is omitted herein. - It is to be understood, however, that even though numerous, characteristics and advantages of embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosed is illustrative only, and changes may be made in detail, especially in matters of number, shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broadest general meaning of the terms in which the appended claims are expressed.
- The various embodiments described above can be combined to provide further embodiments. Aspects of the embodiments can be modified, if necessary to employ concepts of the various patents, application and publications to provide yet further embodiments.
- These and other changes can be made to the embodiments in light of the above-detailed description. In general, in the following claims, the terms used should not be construed to limit the claims to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled. Accordingly, the claims are not limited by the disclosure.
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN2011102376595A CN102957013A (en) | 2011-08-18 | 2011-08-18 | Cable plug connector, board terminal socket connector and connector component |
CN201110237659 | 2011-08-18 | ||
CN201110237659.5 | 2011-08-18 |
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US20130045638A1 true US20130045638A1 (en) | 2013-02-21 |
US8777664B2 US8777664B2 (en) | 2014-07-15 |
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US13/550,945 Expired - Fee Related US8777664B2 (en) | 2011-08-18 | 2012-07-17 | Cable connector, receptacle connector and connector assembly thereof with improved contact arrangement |
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US (1) | US8777664B2 (en) |
CN (1) | CN102957013A (en) |
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